<template>
  <div class="report-container">
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>订单报表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片 -->
    <el-card shadow="always">
      <!-- 为ECharts准备一个具备大小（宽高）的Dom -->
      <div id="main" style="width: 100%;height:500px;"></div>
    </el-card>
  </div>
</template>

<script>
// 导入·echart
import Vue from 'vue'
import * as echarts from 'echarts'
import _ from 'lodash'
Vue.prototype.$echarts = echarts
export default {
  data() {
    return {
      data() {
        return {
          options: {
            title: {
              text: '用户来源'
            },
            tooltip: {
              trigger: 'axis',
              axisPointer: {
                type: 'cross',
                label: {
                  backgroundColor: '#E9EEF3'
                }
              }
            },
            grid: {
              left: '3%',
              right: '4%',
              bottom: '3%',
              containLabel: true
            },
            xAxis: [
              {
                boundaryGap: false
              }
            ],
            yAxis: [
              {
                type: 'value'
              }
            ]
          }
        }
      }
    }
  },

  methods: {

    async myEcharts() {
      // 基于准备好的dom，初始化echarts实例
      const myChart = this.$echarts.init(document.getElementById('main'))
      const { data: res } = await this.$http.get('/reports/type/1')
      // 指定图表的配置项和数据
      // 使用刚指定的配置项和数据显示图表。4cona
      const result = _.merge(res.data, this.options)

      myChart.setOption(result)
    }
  },

  mounted() { this.myEcharts() }
}
</script>

<style  lang="less" scoped>
.el-breadcrumb {
  margin-bottom: 20px;
}
</style>
